A touching story, but the script comes out lacking when put together with such superb acting.

It'll start by saying that this movie is not family-friendly. I would watch it with adult friends and siblings, but I wouldn't show it to my parents or underage kids. Too much cussing, suggestive scenes, morally questionable actions, etc.

Besides that, the trailer and the movie don't match. The trailer makes it look like it's all fun and games but that's not the case. It's heart-breaking actually, even if there are a couple funny scenes.

I did quite enjoy this movie though.
It's about reconciliation, sacrifice, closure, hope.
The actors did such an amazing job bringing out their characters and making them real. As the audience you become so attached to the main characters you can't help but feel what they feel and suffer alongside them (...I cried).

However, it's definitely not perfect. It has flawed pacing, a lacking plot and a somewhat rushed ending.
I won't go into details or give out spoilers, but I can't help thinking that with such phenomenal casting they could've polished the story itself quite some more.

To sum it up, after going up and down on an emotional rollercoaster... in the end it's a forgettable movie.
This might sound harsh but this movie doesn't bring anything new to the table. The tragic situation that gets revealed past the half-way-point was so predictable it almost became bland and, worse, it took attention away from what should be the main focus of the plot instead of adding to it. Also, the different plot pieces don't quite fit. There are a lot of typical tropes, but the main problem is really the lack of a clear objective on the scriptwriter's part.

I won't spoil it, but I'll leave you, who is going to watch or has watched this movie, with a question to wonder about: what made the older brother change?

...Will/Do you perhaps see what I mean?
I think you'll find that's the fatal flaw in this movie... What it does is make it seem that, ultimately, what caused him to change was an external factor rather than something that came out from within him after an inner struggle. External factors should remain as mere triggers, and change should come from a difficult choice. Otherwise things don't add up, it doesn't feel earned but lacklustre instead... They had the ingredients to do that in "My Annoying Brother". It's a pity.

Still, I think it's worth it to watch this movie.